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	hartrees
Energy at 0K	-871.757640
Energy at 298.15K	-871.765422
HF Energy	-871.400727
Nuclear repulsion energy	192.701472

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2295	2143	168.02
2	A₁	2285	2134	29.89
3	A₁	2261	2111	99.57
4	A₁	987	921	83.18
5	A₁	964	900	20.70
6	A₁	932	870	215.20
7	A₁	588	549	10.38
8	A₁	402	376	1.00
9	A₁	102	95	2.10
10	A₂	2290	2139	0.00
11	A₂	976	912	0.00
12	A₂	729	681	0.00
13	A₂	431	402	0.00
14	A₂	80	75	0.00
15	B₁	2295	2143	302.82
16	B₁	2271	2120	44.49
17	B₁	980	915	97.87
18	B₁	621	580	11.91
19	B₁	325	303	31.48
20	B₁	100	93	0.07
21	B₂	2294	2142	104.43
22	B₂	2279	2129	112.90
23	B₂	977	912	37.86
24	B₂	923	862	367.43
25	B₂	759	709	350.42
26	B₂	486	454	5.74
27	B₂	455	425	28.54

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.885
Si2	0.000	1.948	-0.417
Si3	0.000	-1.948	-0.417
H4	1.198	0.000	1.759
H5	-1.198	0.000	1.759
H6	0.000	3.153	0.439
H7	0.000	-3.153	0.439
H8	1.200	1.978	-1.280
H9	-1.200	1.978	-1.280
H10	-1.200	-1.978	-1.280
H11	1.200	-1.978	-1.280

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3429	2.3429	1.4822	1.4822	3.1849	3.1849	3.1694	3.1694	3.1694	3.1694
Si2	2.3429		3.8952	3.1561	3.1561	1.4784	5.1722	1.4791	1.4791	4.1951	4.1951
Si3	2.3429	3.8952		3.1561	3.1561	5.1722	1.4784	4.1951	4.1951	1.4791	1.4791
H4	1.4822	3.1561	3.1561		2.3951	3.6223	3.6223	3.6264	4.3475	4.3475	3.6264
H5	1.4822	3.1561	3.1561	2.3951		3.6223	3.6223	4.3475	3.6264	3.6264	4.3475
H6	3.1849	1.4784	5.1722	3.6223	3.6223		6.3067	2.4036	2.4036	5.5434	5.5434
H7	3.1849	5.1722	1.4784	3.6223	3.6223	6.3067		5.5434	5.5434	2.4036	2.4036
H8	3.1694	1.4791	4.1951	3.6264	4.3475	2.4036	5.5434		2.4006	4.6278	3.9565
H9	3.1694	1.4791	4.1951	4.3475	3.6264	2.4036	5.5434	2.4006		3.9565	4.6278
H10	3.1694	4.1951	1.4791	4.3475	3.6264	5.5434	2.4036	4.6278	3.9565		2.4006
H11	3.1694	4.1951	1.4791	3.6264	4.3475	5.5434	2.4036	3.9565	4.6278	2.4006

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.878	S1	S2	H8	109.985
S1	S2	H9	109.985	S1	S3	H7	110.878
S1	S3	H10	109.985	S1	S3	H11	109.985
S2	S1	S3	112.465	S2	S1	H4	109.119
S2	S1	H5	109.119	S3	S1	H4	109.119
S3	S1	H5	109.119	H4	S1	H5	107.788
H6	S2	H8	108.724	H6	S2	H9	108.724
H7	S3	H10	108.724	H7	S3	H11	108.724
H8	S2	H9	108.493	H10	S3	H11	108.493

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD/6-31+G**

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: CCSD/6-31+G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)